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问题 单项选择题

女性，因皮肤紫癜1个月，牙龈出血不止2天，高热，贫血进行性加重，伴乏力、头晕、心悸住院，肝、脾、淋巴结不大、胸骨无压痛。化验：血红蛋白、白细胞、血小板低于正常，骨髓增生极度减低。该患者可能是

A．急性再生障碍性贫血
B．急性白血病
C．血小板减少性紫癜
D．慢性再生障碍性贫血
E．过敏性紫癜

答案

参考答案：A

解析： 该患者可能是急性再生障碍性贫血，再生障碍性贫血是一组由于各种原因引起的骨髓造血组织明显减少、造血功能衰竭而发生以全血细胞减少为特征的贫血性疾病，以进行性贫血、出血、反复感染为主要临床表现。起病急骤、病情严重，常有反复严重感染和内脏出血者称为急性再生障碍性贫血。

单项选择题

The girls in this sixth grade class in East Palo Alto, California, all have the same access to computers as boys. But researchers say, by the time they get to high school, they are victims of what the researchers call a major new gender (性别) gap in technology. Janice Weinman of the American Association of University Women says, "Girls tend to be less comfortable than boys with the computer. They use it more for word processing rather than for problem solving, rather than to discover new ways in which to understand information."

Girls often feel ______.
A. bored with computer games
B. comfortable using computers
C. it hard to use computers in word processing
D. worried about using computers

After re-examining a thousand studies, the American Association of University Women researchers found that girls make up only a small percentage of students in computer science classes. Girls consistently rate themselves significantly lower than boys in their ability and confidence in using computers. And they use computers less often than boys outside the classroom.An instructor of a computer lab says he’s already noticed some differences. Charles Cheadle of Cesar Chavez School says, "Boys are not so afraid they might do something that will harm the computer, whereas girls are afraid they might break it somehow."
Six years ago, the software company Purple Moon noticed that girls’ computer usage was falling behind boys. Karen Gould says, "The number one reason girls told us they don’t like computer games is not that they’re too violent, or too competitive. Girls just said they’re incredibly boring."
Purple Moon says it found what girls want, characters they can relate to and story lines relative to what’s going on in their own lives. Karen Gould of Purple Moon Software says, "What we definitely found from girls is that there is no intrinsic (固有的) reason why they wouldn’t want to play on a computer; it was just a content thing."
The sponsor of the study says it all boils down to this: the technology gender gap that separates the girls from the boys must be closed if women are to compete effectively with men in the 21st century.
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单项选择题 A1/A2型题

舌苔厚腻垢浊不化，状如霉酱，伴便秘腹胀者。常为（）。

A.宿食内积

B.寒湿内停

C.湿热内蕴

D.脾虚失运

E.心脾火炽
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